It looks like Pixel Watch 2 will have a new look , but it’s not the watch itself but the band that’s Google (probably) will sell separately from the Watch.
As 9to5google wrote, Google has developed a band called the Watch 2 called Metal Slim Band. Hopefully this band will be called just that and nothing more complex as some manufacturers love complicated names for their product colors etc.
Either way, it looks like this band will be available in two different colors: gold and black. I guess that this band, as mentioned above, will be a separate purchase for those that are interested.